Depurator



(No Model.)

J. KETCHUM, Jr.

DEPURATOR. No. 314,453. Patented Mar. 24, 1885.

N. PETERS. Fhowmhagmphnr. washingmn. n. C.

UNITED STATES ArENr OEricE.

JOsEPH KETOHUM, JE., OE BROOKLYN, NEw YORK.

DEPU RATO R.

SPECIFICATION forming part of Letters Patent No. 314,453, dated lVIareh24, 1885.

Application filed October 21, 1894. (No model.)

Ll' 0 @ZZ whom it may con/cern:

Be it known that I, J osEPH KETOHUM, Jr., of Brooklyn, county of Kings,and State of New York, have invented a certain new and usefulImprovement in Apparatus for Treating Diseases and Disorders in Vacuo,of which the following is a specification.

The improvement consists in an airtight y cabinet adapted to receive apatient, and having provision for breathing from and back into theexternal air, a pump for exhausting air from the cabinet, a tank betweenthe pump and the cabinet, a connection between the cabinet and the tank,and a lconnection between the tank and the pump.

The improvement involves the interposition of a tank between anair-tight cabinet and an air-pump in such manner that air exhausted fromthe tank will cause a partial vacuum therein, after which, if the airfrom the cabinet be allowed to dow into the tank, it will create apartial vacuum inthe cabinet. This combination of parts is for thepurpose of relieving the patient from the successive impulses to whichhe would be subjected were the rarefaction produced by anair-pumpapplied directly to the cabinet, such impulses being extremelydisagreeable and being liable to cause injury to persons of nervoustemperament.

In the accompanying drawing I have shown a sectional elevation ofapparatus embodying my improvement.

Referring to this drawing, A represents an air-tight closet or cabinet4of convenient form and size for receiving a patient. An opening, B, isformed in the front, serving the purposes of an entrance-way- Theopening B is provided with a cover, C, which, for convenience insecuring an air-tight joint, is fitted with a shoulder or easement, D,formed upon the closet. A tube, K, leads from the exte- -riorofthevcabinet to its interior, and this is united with a flexible tube,7c. Said tube k preferably has arranged upon its free end a mouth-pieceor nozzle, a, which is adapted to be held in the mouth or at thebreathingorgans of the patient, or to be applied to the other portionsof the body which it may be desired to treat. A suitable cock, k, isinserted in the pipek for controlling the flow of air, vapor, or gasthrough this tube.

A reservoir, L, may be employed for containing medicine or othersubstances which it may be desired to administer to the patient.

` between pipes F This reservoir is connected with the pipe 7c by meansof a tube, m, terminating in a spray-nozzle, m, of well-knownconstruction. Through this the contents of the reservoir are forced, theflow being` regulated by means of a stop-cock, ml.

I will now describe the means I employ to rarefy the air in the cabinetA. For this purpose an air or vacuum pump, F, of welllknown constructionis employed. I arrange F2, leading from the cabinet to the pump F, ana'r tight tank, G, ofany convenient form. Suitable valves or cocks, gg2, are interposed in the pipes Fl F2, for the purpose of governing theflow of air. I first rarefy the air in the tank G by means of the pumpF. To do this the valve or cock g is closed and the pump operated. Thevalve or cock g2 is afterward closed, and the valve or cock g opened,thus allowing the air from the cabinet to pass into the tank until therequired rarefaction is produced in the cabinet. I may arrange avacuum-gage, H, upon the cabinet A, by means of which the degree ofrarefaction may at any time be determined.

I have found that the best results may be obtained under a rarefactionrepresented by from one-half to one and one-half inch of mercury; butany proper degree of rarefaction may be produced.

I do not herein claim a cabinet in which a patient is subjected to apartial vacuum and caused to inhale from and exhale into the at mosphereexternal to the cabinet; neither do I claim a cabinet in which a patientis sub jected to a partial vacuum and caused to inhale from and exhaleinto the external atmosphere and a reservoir for containing medicine orother substances in connection with the means for inhaling from theexternal atmosphere.

N Vhat I claim as my invention, and desire to secure by Letters Patent,is

The combination of an air-tight cabinet adapted to receive a patient andhaving provision for breathing from and back into the external air, apump for exhausting air from the cabinet, a tank between the pump andthe cabinet, a connection between the cabinet and the tank, and aconnection between the tank and the pump, substantially as specified.

JOS. KETGHUM, JR. Witnesses:

T. J. KEANE, W. G. LrrsEY.

IOO

